What Do You Know About Metabolism? Trivia Questions Quiz
What Do You Know About Metabolism? There are a lot of chemical reactions that occur within a living thing and by studying metabolism, we get to learn how the processes take place. Metabolism can either be in the Catabolism or Anabolism category. Do take up this quiz and get to see if you understand them all. All the best!
- 1.
What is metabolism?
- A.
All of the chemical reactions in an organism
- B.
Polymer to monomer reactions that release ATP and break down
- C.
Monomer to polymer reactions that require ATP and build up
- D.
None of the above
Correct Answer
A. All of the chemical reactions in an organismExplanation
Metabolism refers to all of the chemical reactions that occur within an organism. This includes processes such as breaking down complex molecules into simpler ones (polymer to monomer reactions) which release ATP, as well as building up complex molecules from simpler ones (monomer to polymer reactions) which require ATP. Therefore, the correct answer is "All of the chemical reactions in an organism".Rate this question:
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- 2.
What is catabolism?
- A.
All of the chemical reactions in an organism
- B.
Polymer to monomer reactions that release ATP and break down
- C.
Monomer to polymer reactions that require ATP and build up
- D.
None of the above
Correct Answer
B. Polymer to monomer reactions that release ATP and break downExplanation
Catabolism refers to the process of breaking down complex molecules, such as polymers, into simpler molecules, known as monomers. This process releases energy in the form of ATP. Therefore, the correct answer is "Polymer to monomer reactions that release ATP and break down."Rate this question:
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- 3.
What is anabolism?
- A.
All of the chemical reactions in an organism
- B.
Polymer to monomer reactions that release ATP and break down
- C.
Monomer to polymer reactions that require ATP and build up
- D.
None of the above
Correct Answer
C. Monomer to polymer reactions that require ATP and build upExplanation
Anabolism refers to the metabolic process in which smaller molecules, known as monomers, are combined to form larger molecules, known as polymers. This process requires the input of energy in the form of ATP and is responsible for building up complex molecules in an organism. Therefore, the correct answer is "Monomer to polymer reactions that require ATP and build up."Rate this question:
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- 4.
What is adenosine made of?
- A.
Adenine and phosphate
- B.
Adenine and pentose
- C.
Adenine and deoxyribose
- D.
Adenine and ribose
Correct Answer
D. Adenine and riboseExplanation
Adenosine is a nucleoside composed of adenine and ribose. Adenine is one of the four nitrogenous bases found in DNA and RNA, while ribose is a pentose sugar. Together, they form adenosine, which plays a crucial role in various biological processes, including energy transfer and signal transduction.Rate this question:
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- 5.
How many high energy bonds does ATP have?
- A.
0
- B.
1
- C.
2
- D.
3
Correct Answer
C. 2Explanation
ATP (adenosine triphosphate) is a molecule that stores and releases energy for cellular processes. It contains two high energy bonds between its phosphate groups. These bonds are easily broken, releasing energy when needed for various cellular activities. Therefore, the correct answer is 2.Rate this question:
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- 6.
How many high energy bonds does ADP have?
- A.
0
- B.
1
- C.
2
- D.
3
Correct Answer
B. 1Explanation
ADP (adenosine diphosphate) has one high energy bond. This bond is found between the second and third phosphate groups in the molecule. When this bond is broken, energy is released and ADP is converted into ATP (adenosine triphosphate), which is the primary energy currency of cells.Rate this question:
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- 7.
How many high energy bonds does AMP have?
- A.
0
- B.
1
- C.
2
- D.
3
Correct Answer
A. 0Explanation
AMP, or adenosine monophosphate, does not have any high energy bonds. High energy bonds are typically found in molecules such as ATP (adenosine triphosphate), where the energy stored in these bonds is readily available for cellular processes. In AMP, the phosphate group is only attached to the ribose sugar by a single bond, making it a low-energy molecule. Therefore, the correct answer is 0.Rate this question:
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- 8.
Are enzymes proteins?
- A.
All of them are, and all proteins are enzymes
- B.
All of them are, but not all proteins are enzymes
- C.
Some of them are, but not all proteins are enzymes
- D.
None of them are
Correct Answer
B. All of them are, but not all proteins are enzymesExplanation
The answer "All of them are, but not all proteins are enzymes" is correct because enzymes are a type of protein. However, not all proteins are enzymes. Proteins have various functions in the body, and while enzymes are proteins, there are other types of proteins that do not have enzymatic activity.Rate this question:
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- 9.
What do enzymes do?
- A.
Slow down chemical reaction
- B.
Speed up chemical reaction
- C.
Create chemical reactions
- D.
Totally destroy chemical reactions
Correct Answer
B. Speed up chemical reactionExplanation
Enzymes are biological catalysts that speed up chemical reactions in living organisms. They do this by lowering the activation energy required for a reaction to occur, allowing it to happen more quickly. Enzymes themselves are not consumed or changed during the reaction, making them highly efficient in facilitating various metabolic processes.Rate this question:
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- 10.
What is the substrate?
- A.
What enzyme reacts on
- B.
The products
- C.
The enzyme itself
- D.
The reactant(s)
- E.
A and D
- F.
None of the above
Correct Answer
E. A and DExplanation
The substrate refers to the specific molecule or molecules that are acted upon by an enzyme. In this case, the correct answer is A and D, which means that the substrate can be either the reactant(s) or the products of the reaction. This implies that the enzyme can either act on the reactant(s) to produce the product(s), or it can act on the product(s) to convert them back into the reactant(s).Rate this question:
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- 11.
What is the part of enzyme where the substrate is given an induced (tight) fit?
- A.
Activation site
- B.
Reactant site
- C.
Substrate site
- D.
Active site
Correct Answer
D. Active siteExplanation
The active site of an enzyme is the part where the substrate molecule binds and undergoes a chemical reaction. It provides a specific environment that allows the substrate to fit tightly and interact with the enzyme's active site residues. This induced fit ensures that the enzyme and substrate form a stable complex, facilitating the catalytic reaction.Rate this question:
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- 12.
How do enzymes speed up chemical reactions?
- A.
Increase activation energy
- B.
Lower activation energy
- C.
We're not entirely sure
- D.
A and C
- E.
B and C
Correct Answer
E. B and CExplanation
Enzymes speed up chemical reactions by lowering the activation energy required for the reaction to occur. They do this by binding to the reactant molecules and bringing them closer together, allowing them to interact more easily. Additionally, enzymes can also provide a microenvironment that is conducive to the reaction, such as a specific pH or temperature. Therefore, the correct answer is B and C, as both lowering the activation energy and providing a favorable environment are ways in which enzymes speed up chemical reactions.Rate this question:
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- 13.
What happens if you denature an enzyme?
- A.
Changes shape of active site, but still works just as good
- B.
Change shape of active site, continues to work but not as good
- C.
Change shape of active site, no longer works
- D.
Nothing, it is not affected
Correct Answer
C. Change shape of active site, no longer worksExplanation
Denaturing an enzyme refers to the process of altering its structure, usually through the application of heat or extreme pH levels. This alteration in structure leads to a change in the shape of the enzyme's active site. Since the active site is responsible for binding to the substrate and catalyzing the reaction, any change in its shape will disrupt the enzyme's ability to function properly. Therefore, when an enzyme is denatured, it no longer works.Rate this question:
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- 14.
What is an enzyme inhibitor?
- A.
Something that speeds up the enzyme
- B.
Something that slows down the enzyme
- C.
Something that totally stops the enzyme
- D.
Something that denatures the enzyme
Correct Answer
B. Something that slows down the enzymeExplanation
An enzyme inhibitor is a substance that slows down the activity of an enzyme. It does not completely stop the enzyme or denature it, but rather reduces its ability to catalyze a reaction. Inhibitors can bind to the active site of the enzyme or to other sites, causing a change in the enzyme's shape or interfering with its ability to bind to the substrate. This ultimately decreases the rate of the enzymatic reaction, allowing for regulation and control of biochemical processes in the body.Rate this question:
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- 15.
What is a competitive inhibitor?
- A.
An inhibitor that moves into active site of enzyme
- B.
An inhibitor that moves into non-active site and changes conformation of protein
- C.
Neither of these
- D.
This is not the answer
Correct Answer
A. An inhibitor that moves into active site of enzymeExplanation
A competitive inhibitor is a type of inhibitor that binds to the active site of an enzyme, preventing the substrate from binding and inhibiting the enzyme's activity. It competes with the substrate for binding to the active site. This type of inhibition can be overcome by increasing the concentration of the substrate.Rate this question:
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- 16.
How do you overcome the inhibitor?
- A.
Decrease concentration of enzyme
- B.
Increase concentration of enzyme
- C.
Decrease concentration of inhibitor
- D.
Increase concentration of substrate
Correct Answer
D. Increase concentration of substrateExplanation
Increasing the concentration of substrate can help overcome the inhibitor because the inhibitor binds to the enzyme, preventing it from binding to the substrate and catalyzing the reaction. By increasing the concentration of substrate, there will be a higher chance of the substrate molecules binding to the enzyme instead of the inhibitor, allowing the reaction to proceed. This effectively reduces the impact of the inhibitor and allows the enzyme to function more effectively.Rate this question:
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- 17.
What is non-competitive inhibitor?
- A.
An inhibitor that moves into active site of enzyme
- B.
An inhibitor that moves into non-active site and changes conformation of protein
- C.
A poison
- D.
None of these
- E.
B and C
Correct Answer
E. B and CExplanation
A non-competitive inhibitor is an inhibitor that does not bind to the active site of an enzyme. Instead, it binds to a different site on the enzyme, called the non-active site, and causes a change in the conformation of the protein. This change in conformation prevents the enzyme from functioning properly. In some cases, a non-competitive inhibitor can act as a poison, causing harm to the organism. Therefore, the correct answer is B and C.Rate this question:
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- 18.
What are allosteric enzymes?
- A.
Enzymes that are easily denatured
- B.
Enzymes that are unable to be denatured
- C.
Enzymes that change shape to toggle between active and inactive
- D.
None of these
Correct Answer
C. Enzymes that change shape to toggle between active and inactiveExplanation
Allosteric enzymes are enzymes that change shape in order to switch between active and inactive states. This change in shape is triggered by the binding of a molecule, called an allosteric regulator, to a specific site on the enzyme that is separate from the active site. This binding causes a conformational change in the enzyme, which either enhances or inhibits its activity. Allosteric enzymes play a crucial role in regulating metabolic pathways and maintaining homeostasis in cells.Rate this question:
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- 19.
How do allosteric enzymes become active?
- A.
Activator attaches
- B.
Inhibitor attaches
- C.
Substrate attaches
- D.
Nothing attaches
Correct Answer
A. Activator attachesExplanation
Allosteric enzymes become active when an activator attaches to them. This attachment causes a conformational change in the enzyme's structure, leading to an increase in its catalytic activity. The activator molecule binds to a specific regulatory site on the enzyme, which is distinct from the active site where the substrate binds. This allosteric regulation allows for the fine-tuning of enzyme activity in response to cellular needs.Rate this question:
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- 20.
How do allosteric enzymes become inactive?
- A.
Activator attaches
- B.
Inhibitor attaches
- C.
Substrate attaches
- D.
Nothing attaches
Correct Answer
B. Inhibitor attachesExplanation
When an inhibitor attaches to an allosteric enzyme, it causes a conformational change in the enzyme's active site. This change prevents the substrate from binding to the enzyme, rendering it inactive. By inhibiting the binding of the substrate, the inhibitor effectively shuts down the enzyme's catalytic activity.Rate this question:
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Oct 18, 2024Quiz Edited by
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Feb 29, 2016Quiz Created by
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